Multisource frequency spectrum spectrometer control system for multi-nuclear magnetic resonance

Abstract

The invention provides a multisource frequency spectrum spectrometer control system for multi-nuclear magnetic resonance. The system comprises a scanning controller, which receives a control instruction, an imaging sequence and configuration parameters sent by a user through a master computer, allocates the configuration parameters to corresponding hardware modules, executes the imaging sequence to generate a hardware trigger signal and controls the hardware modules to work coordinatively according to time sequence requirements; a multi-element radio frequency generator, which is electrically connected with the scanning controller and is used for generating radio frequency pulse signals to stimulate a plurality of imaging objects to resonate; a multi-element gradient generator, which is electrically connected with the scanning controller and is used for obtaining a plurality of gradient waveforms through analysis from the imaging sequence to drive a gradient coil to generate a plurality of gradient magnetic fields for space encoding; and a multi-element radio frequency receiver, which is electrically connected with the scanning controller and is used for enabling the processed magnetic resonance signals to be transmitted to the scanning controller, and then, the scanning controller returns the signals to the master computer for image reconstruction.

Description

technical field [0001] The present invention relates to spectrum analyzer technology, in particular to a multivariate spectrum spectrometer control system, which generates multiple radio frequency and gradient pulses according to the requirements of the imaging pulse sequence, receives and processes multiple magnetic resonance signals, and completes the scanning process of multiple MRI . Background technique [0002] In the MRI (Magnetic Resonance Imaging, magnetic resonance imaging) system, the spectrometer (Spectrometer) is the core component of the entire system. It is responsible for generating radio frequency and gradient pulses at a specific timing according to the requirements of the imaging pulse sequence, receiving and processing magnetic resonance. signal, the process of completing the MRI scan. The technical content of the spectrometer is very high, and its performance directly affects the quality of magnetic resonance imaging. The competition of MRI manufacturer...

AI Technical Summary

Problems solved by technology

The research level of foreign MRI spectrometers is relatively high, but the price of imported commercial spectrometers is expensive, and the relevant technical information is highly confidential

Domestic research on spectrometers started late, the technology is still immature, and there is still a certain gap with foreign advanced levels

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